Hello, I've just received my Western Digital 500GB My Book Pro Edition external hard drive. I've followed the basic installation instruction inside it and it's mounted on my desktop. I just have a couple of questions about it: 1) There are files in the 'My Book' icon. (see pic below). The three icons (not the one called MAC) for windows purposes are 178MB, 138MB and 32kb - are these files needed or can they be dragged to the trash? 2) Is that it? (probably a stupid question). Do I just start dragging the files I want to store externally into the "My Book" icon? Do I or should I do anything else to it before I start moving files? The My Book will mainly be used to hold the movies and tv shows which I've downloaded through iTunes. THANKS for any help.